公开(公告)号：US11627234B2

公开(公告)日：2023-04-11

申请号：US17382797

申请日：2021-07-22

Applicant: Konica Minolta, Inc.

Inventor： Masayuki Watanabe ,  Hidenori Mine ,  Satoshi Ogata ,  Kazutoshi Yoshimura

IPC: H04N1/32 ,  G06F3/12 ,  H04N1/00

Abstract: A post-processing device includes: multiple types of post-processing modules that are disposed at predetermined installation positions within the post-processing device and each execute post-processing to an output sheet on which an image is formed; and a controller that (i) detects the post-processing modules at the installation positions and (ii) determines and controls adjustment contents of the post-processing modules based on a detection result.

公开(公告)号：US10754278B2

公开(公告)日：2020-08-25

申请号：US16276321

申请日：2019-02-14

Applicant: Konica Minolta, Inc.

Inventor： Masayuki Fukunaga ,  Toshiaki Tanaka ,  Masayuki Watanabe ,  Mineo Yamamoto

IPC: G03G15/20 ,  G03G15/00

Abstract: An image forming apparatus including: a fixer that fixes a toner image formed on a recording medium by pressing and heating the recording medium nipped in a nip portion formed by causing two rotating bodies to pressedly abut on each other, and conveying the recording medium by rotating the rotating bodies; a motor that drives the rotating bodies by transmitting a torque to at least one of the rotating bodies; a torque detector that detects the torque transmitted to the rotating body by the motor; a temperature detector that detects temperature of the rotating body; a speed detector that detects a conveyance speed for conveying the recording medium by the fixer; and a controller that corrects the detected torque based on at least any one of the detected temperature and the detected conveyance speed and predicts a life of the fixer based on the corrected torque.

公开(公告)号：US09063490B2

公开(公告)日：2015-06-23

申请号：US14470375

申请日：2014-08-27

Applicant: KONICA MINOLTA, INC.

Inventor： Takeshi Tamada ,  Satoshi Ogata ,  Kenji Izumiya ,  Hiroshi Oyama ,  Masayuki Watanabe

IPC: G03G15/20 ,  G03G15/00

CPC classification number: G03G15/2053 ,  G03G15/50

Abstract: A fixing apparatus includes an upper pressure roller, a fixing belt, a lower pressure roller which cooperates with the upper pressure roller and the fixing belt for forming a fixing nip portion which holds and conveys a sheet with a toner image therebetween; a drive motor which rotates the lower pressure roller; a plurality of motors each of which is capable of generating a braking force in the direction to hinder rotation of the upper pressure roller and an assist force in the direction to assist rotation of the upper pressure roller; a torque generation unit which generate an effective braking force in the direction to hinder rotation of the fixing side member as a combination of the braking and assist forces; and a control unit which switches the motor used to generate the braking force among the plurality of motors in accordance with a predetermined condition.

Abstract translation: 定影装置包括上压辊，定影带，与上压辊和定影带配合的下压辊，用于形成定影夹持部分，该定影夹持部分保持并输送具有调色剂图像的片材; 旋转下压辊的驱动马达; 多个电动机中的每一个能够产生阻碍上压辊旋转的方向的制动力和帮助上压辊旋转的方向的辅助力; 扭矩产生单元，其在制动和辅助力的组合时沿阻止固定侧构件的旋转的方向产生有效的制动力; 以及控制单元，其根据预定条件在多个电动机之间切换用于产生制动力的电动机。

公开(公告)号：US11345562B2

公开(公告)日：2022-05-31

申请号：US16840539

申请日：2020-04-06

Applicant: KONICA MINOLTA, INC.

Inventor： Teruhiko Toyoizumi ,  Masayuki Watanabe ,  Hidenori Mine

IPC: B65H35/02 ,  B65H35/00 ,  B65H35/04 ,  B41J11/66 ,  B26D7/00 ,  B26D7/28

Abstract: A post-processing apparatus includes: a cutter that cuts a transported sheet; a waste bin that stores a cutting waste generated by a cutting operation of the cutter and falling from the cutter; a sensor that detects the cutting waste at a predetermined position in a depth direction in the waste bin; and a hardware processor that controls the cutting operation of the cutter according to a cutting mode, sets a predetermined value according to the cutting mode when the sensor detects the cutting waste, counts the number of times of cutting by the cutter after the sensor starts to detect the cutting waste, and detects that the waste bin is full when the counted number of times of cutting reaches the predetermined value.

公开(公告)号：US09335677B2

公开(公告)日：2016-05-10

申请号：US14477745

申请日：2014-09-04

Applicant: KONICA MINOLTA, INC.

Inventor： Satoshi Ogata ,  Takeshi Tamada ,  Kenji Izumiya ,  Hiroshi Oyama ,  Masayuki Watanabe

IPC: G03G21/00 ,  G03G15/20

CPC classification number: G03G15/2017 ,  G03G2215/2045

Abstract: A fixing apparatus comprises a fixing nip width adjustment unit configured to adjust the fixing nip width of a fixing nip portion; a braking force generation motor configured to generate an effective braking force in the direction to hinder rotation of an upper pressure roller; and a control unit configured to perform restore control for rotating the upper pressure roller and a lower pressure roller by driving a drive motor and speed keeping control for keeping the rotational speed of the braking force generation motor no higher than a predetermined speed during the restore control in a non-fixing period in which the fixing nip width adjustment unit is controlled to decrease the fixing nip width smaller than in a fixing period and a braking force is applied to the fixing side member by the braking force generation motor.

Abstract translation: 定影装置包括定影夹持宽度调节单元，其被配置为调整定影夹持部的定影夹持宽度; 制动力产生电动机，其构造成在阻止上压辊的旋转的方向上产生有效的制动力; 以及控制单元，其被配置为执行恢复控制，以通过驱动驱动电机来旋转上压力辊和下压力辊，并且在恢复控制期间保持用于将制动力发电电动机的转速保持在预定速度以上的速度保持控制 在定影夹持宽度调节单元被控制以使定影夹持宽度小于定影周期的非固定时段中，并且制动力产生马达对固定侧构件施加制动力。

公开(公告)号：US12030304B2

公开(公告)日：2024-07-09

申请号：US17531312

申请日：2021-11-19

Applicant: Konica Minolta, Inc.

Inventor： Kazutoshi Yoshimura ,  Satoshi Ogata ,  Masayuki Watanabe ,  Hidenori Mine

IPC: B41J11/00 ,  B41J11/42 ,  B41J15/04 ,  G03G15/00

CPC classification number: B41J11/007 ,  B41J11/009 ,  B41J11/42 ,  B41J15/048 ,  G03G15/5029 ,  B41J11/0095 ,  G03G15/6529

Abstract: A conveyance device includes a conveyance path on which a medium is carried; a first detector that detects the medium on the conveyance path and generates first property data; and a hardware processor that acquires the first property data and second property data generated by detecting the medium disposed at a position away from the conveyance path.

公开(公告)号：US11708231B2

公开(公告)日：2023-07-25

申请号：US17242191

申请日：2021-04-27

Applicant: Konica Minolta, Inc.

Inventor： Kazutoshi Yoshimura ,  Satoshi Ogata ,  Masayuki Watanabe ,  Hidenori Mine

IPC: B65H7/02 ,  B65H5/06 ,  B65H7/20

CPC classification number: B65H7/02 ,  B65H5/062 ,  B65H7/20 ,  B65H2511/13

Abstract: A paper sheet sensing device includes: a sheet thickness sensor that includes a reference member and a displacement sensor, and senses a sheet thickness of a conveyed recording medium by bringing the reference member into contact with the recording medium and sensing a position of a height of the reference member with the displacement sensor, the position of the height having changed with the recording medium; a first attacher to which the sheet thickness sensor is attached; a conveyor that nips and conveys the recording medium, and is disposed adjacent to the sheet thickness sensor at a predetermined distance equal to or shorter than a length of the recording medium being conveyed, in a conveyance direction of the recording medium; and a displacement preventer that prevents a change in an output of the displacement sensor due to a shift of a relative position of the height of the reference member.

公开(公告)号：US10234814B2

公开(公告)日：2019-03-19

申请号：US15890991

申请日：2018-02-07

Applicant: KONICA MINOLTA, INC.

Inventor： Makoto Shimazoe ,  Masayuki Watanabe ,  Yuhei Tatsumoto ,  Akihiro Hayashi

IPC: G03G15/00 ,  H02M7/06 ,  H01F38/00 ,  H02M1/00

Abstract: A power supply apparatus includes: a first primary winding; a first AC voltage outputter connected to one side of the first primary winding so as to output a first AC voltage; a second AC voltage outputter connected to the other side of the first primary winding and capable of outputting a second AC voltage with an inverted phase of the first AC voltage; a first secondary winding that generates a third AC voltage by mutual induction of the first primary winding to which the first AC voltage and the second AC voltage are applied; a second primary winding having one side receiving an input of the second AC voltage and the other side connected to a fixed voltage; and a second secondary winding that generates a fourth AC voltage by mutual induction of the second primary winding to which the second AC voltage is applied.

公开(公告)号：US09229387B2

公开(公告)日：2016-01-05

申请号：US14658751

申请日：2015-03-16

Applicant: Konica Minolta, Inc.

Inventor： Kosuke Sasaki ,  Kenji Tamaki ,  Masayuki Watanabe ,  Kiyoto Kojima ,  Kenji Izumiya ,  Hiroshi Oyama

IPC: G03G15/20

CPC classification number: G03G15/2039

Abstract: A fixing apparatus included in an image forming apparatus includes a fixing heater that performs heat fixing, a control unit that controls the fixing heater based on control patterns, a temperature sensor that detects temperature of the fixing heater, and a voltage detection unit that detects a voltage that is applied to the fixing heater. In each control pattern, turn-on period of the fixing heater and turn-off period of the fixing heater are set according to a control cycle of a half cycle duty control. The control unit controls the switching unit to turn on or off the fixing heater using a combination of the control patterns each satisfying a standard for preventing a flicker during each control period of time that is integral multiplication of the control cycle according to the temperature of the fixing heater and the voltage value allied to the fixing heater.

Abstract translation: 包括在图像形成装置中的定影装置包括执行热定影的定影加热器，基于控制图案控制定影加热器的控制单元，检测定影加热器的温度的温度传感器，以及检测定影加热器的电压检测单元 施加到定影加热器的电压。 在每个控制模式中，根据半循环占空比控制的控制周期来设定定影加热器的开启周期和定影加热器的关闭周期。 控制单元控制开关单元使用各自满足用于防止在根据控制周期的温度的控制周期的积分乘法的每个控制时段期间的闪烁的控制模式的组合来打开或关闭定影加热器 固定加热器和与定影加热器相关的电压值。

公开(公告)号：US20230095964A1

公开(公告)日：2023-03-30

申请号：US17862763

申请日：2022-07-12

Applicant: Konica Minolta, Inc.

Inventor： Hidenori Mine ,  Masayuki Watanabe ,  Harumitsu Fujimori ,  Takanobu Shiki

IPC: H04N1/00

Abstract: An image forming system includes: an image forming device that is disposed at a first conveyance path and forms an image on a recording medium that is a continuous sheet or a long sheet; a first conveyor that conveys the recording medium on the first conveyance path in a conveyance direction; an image reader that reads the image formed on the recording medium at a second conveyance path on a downstream side of the first conveyance path in the conveyance direction; a second conveyor that conveys the recording medium on the second conveyance path; and a controller that controls a speed of a drive source of the first conveyor and controls a torque of a drive source of the second conveyor.